Differential D4472 Diff 15963 swh/web/assets/config/webpack-plugins/fix-webpack-stats-format-plugin.js

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swh/web/assets/config/webpack-plugins/fix-webpack-stats-format-plugin.js

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				/**
				* Copyright (C) 2020 The Software Heritage developers
				* See the AUTHORS file at the top-level directory of this distribution
				* License: GNU Affero General Public License version 3, or any later version
				* See top-level LICENSE file for more information
				*/

				'use strict';

				// Simple webpack plugin that processes the webpack-stats.json file produced by
				// the latest version of webpack-bundle-tracker [1] in order to modify the JSON
				// schema to the one expected by django-webpack-loader [2].
				// TODO: Remove that plugin once a new version of django-webpack-loader
				// is released.
				// [1] https://github.com/owais/webpack-bundle-tracker
				// [2] https://github.com/owais/django-webpack-loader

				const fs = require('fs');
				const path = require('path');

				class FixWebpackStatsFormatPlugin {

				apply(compiler) {
				compiler.hooks.done.tap('FixWebpackStatsFormatPlugin', statsObj => {
				const outputPath = statsObj.compilation.compiler.outputPath;
				const statsFile = path.join(outputPath, 'webpack-stats.json');
				const statsJson = fs.readFileSync(statsFile).toString('utf8');
				const stats = JSON.parse(statsJson);
				const statsFixed = {
				status: stats.status,
				publicPath: stats.publicPath,
				chunks: {}
				};
				Object.keys(stats.chunks).forEach((chunkName) => {
				const chunkAssets = [];
				for (let asset of stats.chunks[chunkName]) {
				const publicPath = stats.assets[asset].publicPath;
				chunkAssets.push({
				name: asset,
				publicPath: publicPath,
				path: path.join(outputPath, asset)
				});
				}
				statsFixed.chunks[chunkName] = chunkAssets;
				});
				fs.writeFileSync(statsFile, JSON.stringify(statsFixed));
				});
				}

				};

				module.exports = FixWebpackStatsFormatPlugin;